Accuracy measures for evaluating computer pointing devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Using handhelds to help people with motor impairments
Proceedings of the fifth international ACM conference on Assistive technologies
Cursor measures for motion-impaired computer users
Proceedings of the fifth international ACM conference on Assistive technologies
EdgeWrite: a stylus-based text entry method designed for high accuracy and stability of motion
Proceedings of the 16th annual ACM symposium on User interface software and technology
Writing with a joystick: a comparison of date stamp, selection keyboard, and EdgeWrite
GI '04 Proceedings of the 2004 Graphics Interface Conference
Text entry from power wheelchairs: edgewrite for joysticks and touchpads
Assets '04 Proceedings of the 6th international ACM SIGACCESS conference on Computers and accessibility
Barrier pointing: using physical edges to assist target acquisition on mobile device touch screens
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
The performance of hand postures in front- and back-of-device interaction for mobile computing
International Journal of Human-Computer Studies
Ability-Based Design: Concept, Principles and Examples
ACM Transactions on Accessible Computing (TACCESS)
The amodal communication system through an extended directional input
ICCHP'06 Proceedings of the 10th international conference on Computers Helping People with Special Needs
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People with motor impairments often cannot use a keyboard or a mouse. Our previous work showed that a handheld device, connected to a PC, could be effective for computer access for some people with motor impairments. But text entry was slow, and the popular unistroke methods like Graffiti proved difficult for some people with motor control problems. We are now investigating how physical edges can provide stability for stylus gestures, and we are designing a unistroke alphabet whose letter-forms are defined along the edges of a small plastic square hole. This paper presents data on the benefits of physical edges in making gestures. It then describes EdgeWrite, a new unistroke alphabet designed to leverage physical edges for greater stability in text entry.